Autumn in Dortmund, Germany, always carries a sense of both tradition and modernity. Outside, beneath a pale sky, a bustling crowd gathered: importers, brand representatives, retailers, regulatory experts, and industry observers flocked to the familiar exhibition halls of InterTabac & InterSupply. This time, the changes were more pronounced than ever before, with new technologies, designs, and formats emerging in an endless stream. Among these, the “0+10” combination e-cigarette stood out, becoming one of the most representative trends at the show.
The meaning of “0+10” is simple yet precise. Numerous manufacturers at the show showcased their latest refillable e-cigarette combination products. The “0” represents the empty pod, meaning it comes without pre-filled e-liquid; the “10” refers to the included 10ml bottle of e-liquid, the legally permitted maximum volume in Germany. This design strikes a new balance between regulations and user experience. Consumers don’t take away pre-filled pods with their purchase, reducing legal disputes. At the same time, the included bottle of liquid provides users with sufficient flexibility and control.
At the Dortmund trade show, several well-known brands, such as VOZOL, smiss, and MEGA BAR, launched “0+10” or “2+10” combination e-cigarette sets. Manufacturer representatives explained at the show that these combination devices are designed to comply with the strict restrictions on e-cigarettes, liquid capacity, and disposable pods and devices in the German Tobacco Products Act (TabakerzG). The blank cartridge itself, which contains no liquid, can be considered a device or housing; the liquid bottle, sold as a separate product, can be classified as a legally permitted item. This combination configuration provides users with more flexible options within the legal product line.
The GUUTUU e-cigarette brand also became a hot topic at the exhibition hall. While public information hasn’t confirmed whether GUUTUU has yet to release a product explicitly labeled a “0+10” combination e-cigarette set, its product line and R&D direction indicate strong capabilities in developing refillable and replaceable pods and large-capacity tanks. This leads industry observers to believe that GUUTUU has the potential to quickly respond to and capitalize on the “0+10” trend. GUUTUU’s product strengths lie in its youthful design, diverse styles, and flavors. Furthermore, its production system claims to comply with European standards such as CE and RoHS, emphasizing quality and compliance—all crucial factors for its recognition in an increasingly stringent regulatory environment.
From a user experience perspective, the “0+10” combination e-cigarette offers several advantages. First, it provides users with greater freedom: they can choose their own e-liquid flavor and use it with blank cartridges, eliminating the issue of unsatisfactory flavors or ingredients caused by pre-filled e-liquids. Secondly, this combination often offers greater flexibility in cost control, as blank cartridges and liquids are purchased separately, making replacements easier when prices or flavors change, reducing waste. Furthermore, from an environmental and sustainability perspective, reusable blank cartridges or replaceable pods offer multiple uses, easy cleaning, and easy replacement of components, resulting in lower overall waste compared to disposable prefilled devices and less environmental impact.
Legal compliance is another factor driving this trend. Germany’s “TabakerzG” stipulates that e-cigarette liquid containers must not exceed 10 ml, and disposable pods or devices must not contain more than 2 ml. Brands launching “0+10” combination products and selling blank cartridges and liquid separately are formally circumventing or complying with these regulations. This approach allows for innovation within regulatory boundaries while providing consumers with a better user experience. Manufacturers emphasized at the exhibition that these designs reflect the industry’s “respect and compliance” with regulations, rather than “exploiting loopholes” or “evading responsibility.”
GUUTUU could reap significant benefits if it leverages its R&D strength and market acumen to capitalize on this trend. Offering a standard “0+10” set would appeal to users who prioritize regulatory compliance while also emphasizing a flexible experience. In Europe, in particular, many consumers and retailers are particularly sensitive to product legality, compliance certifications, ingredients, and volume labeling. GUUTUU will capitalize on this trend if it offers transparent labeling, clear ingredient information, reliable testing reports, and superior user experience, such as leak-proof, easily replaceable coils and pods, and a pure, consistent flavor profile.
Other brands at the show have already begun showcasing similar products, demonstrating that brand innovation extends beyond form. Separating blank cartridges from liquid has led to improvements in packaging design and logistics. The upgraded material of the blank cartridges demonstrated at the booth enhances durability, while the liquid bottle features a more secure packaging and neck design to reduce accidental dripping. Users can purchase blank cartridges or individual 10ml bottles at retail stores, offering both convenience and lowering the barrier to adoption often associated with the high price of the complete set.
The “0+10” model may also drive the entire industry towards a more responsible and sustainable direction. As the use of disposable e-cigarettes in the German market begins to decline, the market share of reusable devices and refillable pods is increasing. Growing consumer awareness of environmental issues, coupled with potential regulatory and tax restrictions or additional costs for disposable products, is making refillable and refillable products more attractive. GUUTUU already has a line of refillable e-cigarettes, which aligns well with market trends.
Of course, this trend still presents challenges and areas for caution. First, brand and consumer education and communication are crucial. Users must understand that blank cartridges are “liquid-free” devices, whether the liquid bottle contains legal nicotine concentrations, and how to properly refill and use them safely. Improper use, such as improperly combining liquid and blank cartridges or exceeding regulatory concentrations, can pose safety or legal risks. Second, quality control is crucial: the sealing of the blank cartridge, the atomization efficiency of the pod, the material and safety of the e-liquid bottle, and the purity of the nicotine solution all impact user experience and safety. Brands seeking to capitalize on this trend must rigorously control these aspects.
During the exhibition, many retailers and regulatory consultants welcomed the “0+10” product model. They believe this format can stimulate market interest while remaining legal within regulatory frameworks. Regulatory representatives also noted at several forums that if the industry can popularize this compliant and flexible product design, it can reduce the circulation of illegal or gray market products, providing consumers and retailers with legal, safe, and traceable alternatives.
From a market perspective, this design could accelerate the overall transition of e-cigarette products from “simple pre-filled, disposable” to “partially refillable, reconfigurable, and replaceable components.” This transition is not only more consumer-friendly but also potentially more environmentally friendly. Manufacturers are likely to increase their investment in product lifespan, component replaceability, and packaging recyclability, which will help enhance the industry’s overall sustainability image.
Looking ahead, if GUUTUU can proactively address the market demand and regulatory challenges of the “0+10” model, it has the opportunity to become one of the brands recognized as innovation leaders in the industry. Their strength lies in their existing product offerings covering a wide range of replaceable and refillable cartridges, as well as their extensive export and regulatory compliance experience. Brands that can pioneer this model by launching a “0+10” package with excellent design, user experience, transparent ingredients, and safety compliance will not only earn consumer trust but also enhance their resilience amidst evolving policies and regulations.
At dusk on the final day of the Dortmund trade show, the exhibition hall was still brightly lit, and visitors bustled through the streets taking photos, sampling, and inquiring for prices. Prototypes of empty cartridges and liquid bottles sat quietly on display, with some brands demonstrating how to disassemble the pod, fill it with liquid, and change the coil. These detailed demonstrations are precisely the most direct advantages of the “0+10” model. Consumers can see and try it, and understand the rationale behind the regulations. There is debate about whether this design will become mainstream, whether it can withstand increasingly stringent regulations, and whether it can strike the optimal balance between environmental protection, cost, legality, and user experience.
As the entire exhibition hall exited, the streets of Dortmund were slightly chilled by the night, and people left with exhibition materials, samples, and reflections. The rise of the “0+10” combination e-cigarette at this exhibition represents more than just a trend in product design or marketing strategy; it also represents the e-cigarette industry’s intelligent adaptation to regulatory constraints. It represents a collective test of user experience, environmental awareness, legal responsibility, and innovation. If GUUTUU can continue to meet this test with high standards, it has the potential to become a memorable and trusted brand in the European and even global markets.
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